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Stream channel geomorphology influences mussel abundance in southern Appalachian streams, U.S.A.
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We quantified freshwater mussel abundance and species richness and their physical habitat at 24 sites in eight streams in southern Appalachian catchments in 2000 and 2001. In addition, we modelled site-specific hydraulic parameters during summer baseflow and bankfull stages to estimate high- and low-discharge conditions, respectively.
Mussel abundance was related to stream geomorphology, whereas richness was related to stream size. Baseflow habitat parameters explained only minor variation in abundance or richness, and both measures were highly correlated with mean current velocity or stream size. Bankfull shear stress composed a relatively low proportion of overall mussel habitat variability, but it accounted for significant variation in abundance and richness. Mussel abundance was highly variable at sites subject to low-shear stress during spates, whereas abundance always was low at sites subject to high-shear stress. These data suggest that habitat conditions during floods, rather than those at summer baseflow, limit the abundance of mussels in Appalachian streams. These data also suggest that mussel abundance and assemblage structure may be sensitive to any changes in channel geomorphology and hydraulic conditions that might result from land use in the catchment.
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Successful Recovery and Removal from Endangered Species Act of Native Kentucky Plant a Victory for Conservation Partners
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State of Kentucky and U.S. Forest Service played crucial role in recovering the white-haired goldenrod, adding to growing list of ESA successes
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The Powell River gets Infusion of Freshwater Mussels in Restoration Effort
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They're small, slimy and extremely slow moving. Freshwater mussels may not pass the eye test as one of nature's key players, but the unique filter-feeding creatures are vital to the ecological health of rivers and streams.
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Three new darter species of the Etheostoma percnurum species complex (Percidae, subgenus Catonotus) from the Tennessee and Cumberland River Drainages
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The federally endangered Duskytail Darter, Etheostoma percnurum Jenkins, is known from only six highly disjunct populations in the Tennessee and Cumberland river drainages of Kentucky, Tennessee, and Virginia. Only four are extant. Variation in morphology including meristics, morphometrics, and pigmentation was examined among the four extant populations and limited specimens from the two extirpated populations (Abrams Creek and South Fork Holston River). Analyses of these data found each of the extant populations is morphologically diagnosable. The few specimens avail- able from Abrams Creek and South Fork Holston River prevented thorough assessment of variation, and these were grouped with their closest geographic counterparts, Citico Creek, and Little River, respectively. Three new morphologi- cally diagnosable species are described: E. sitikuense, the Citico Darter, from Citico Creek, Abrams Creek, and Tellico River (Tennessee River system); E. marmorpinnum, the Marbled Darter, from the Little River and South Fork Holston River (Tennessee River system); and E. lemniscatum, the Tuxedo Darter, from the Big South Fork (Cumberland River system). Each species warrants federal protection as an endangered species.
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Trevor Zoo
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The Trevor Zoo is an AZA accredited zoo located at Millbrook School in New York state. Trevor Zoo is a member of the Species Survival Program and cares for seven endangered species within the zoo exhibits, the staff also works closely with other organizations in the Hudson Valley who are focused on bringing back other indigenous local species that are nearing extinction.
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U.S. Fish and Wildlife Service Boosts State Endangered Species Conservation Efforts with $32 Million in Grants
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The U.S. Fish and Wildlife Service today announced nearly $32 million in grants to 20 states to help advance their collaborative efforts to conserve America’s rarest species. The cooperative grants will provide vital support to efforts by partnering state wildlife agencies and conservation organizations to improve the health of the land and water that supports these species and scores of communities across the nation.
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U.S. Fish and Wildlife Service Region 5 Endangered Species Act Update
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Featuring general news, incidental take permit, and classification information pertaining to the Endangered Species Act in Region 5.
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U.S. Fish and Wildlife Service Seeks Comments on Draft Summer Survey Guidelines for Indiana Bats
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The U.S. Fish and Wildlife Service is inviting input on draft guidelines and protocols for determining whether endangered Indiana bats (Myotis sodalis) are present or likely absent at a given site during the summer, from May 15 to August 15. Deadline for comments is February 8, 2013.
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U.S. Fish and Wildlife Service Seeks Proposals from States for Annual Endangered Species Grants
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The U.S. Fish and Wildlife Service is seeking proposals from states and U.S. territories interested in obtaining federal financial assistance to acquire land or conduct planning efforts for endangered species conservation.
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U.S. Fish and Wildlife Service Seeks Proposals from States: For FY 2014 Endangered Species Grants
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The U.S. Fish and Wildlife Service is seeking proposals from states and U.S. territories for federal financial assistance for conservation activities that benefit endangered species.
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